Hi,
did you also experience this:
if the database directory is on an NFS-mounted file system
and the NFS-server machine has high load than the ACEDB process
goes into an eternal disk wait.
This was between SunOS -- SunOS,
SunOS -- DEC alpha, SunOS -- (some mainframe NFS server)
moral: run the ACEDB process on a CPU local to the database disk.